How to Challenge Field Sobriety Tests In Your Chicago DUI Case

Facing a DUI charge in Chicago can be a daunting experience, especially when field sobriety tests are involved. These tests are often used by law enforcement to establish probable cause for an arrest. However, they are not always accurate and can be challenged in court. We understand that your future is at stake, and it’s important to know that there are legal strategies available to contest the results of these tests. By questioning the validity of field sobriety tests, we can work to protect your legal rights and fight for a favorable outcome in your case.

The Most Common Field Sobriety Tests In Illinois

Field sobriety tests in Illinois typically include the Horizontal Gaze Nystagmus (HGN), Walk and Turn, and One-Leg Stand tests. While these assessments are standardized, they are not foolproof. Factors such as medical conditions, fatigue, weather conditions, and even the type of footwear can affect performance. Under 625 ILCS 5/11-501.2, the admissibility of chemical and other tests of blood, breath, or urine is outlined, but challenges can be made regarding how these tests were administered.

We can examine whether the arresting officer followed proper procedures as mandated by the Illinois Vehicle Code. Any deviation from the standardized methods can cast doubt on the reliability of the test results. Additionally, we can investigate if the officer was properly trained to administer these tests. The credibility of the evidence can be undermined if protocols are not strictly followed.

Another avenue to challenge field sobriety tests is to question the subjective nature of the observations. Police officers often make judgments based on their perceptions, which can be influenced by bias or environmental factors. Our DUI defense attorney can present alternative explanations for any alleged signs of impairment, highlighting issues such as medical conditions or nervousness during the traffic stop.

Illinois Field Sobriety Test FAQs

What Are The Common Reasons For Challenging Field Sobriety Tests In Illinois?

There are several reasons to challenge field sobriety tests. Improper administration by the officer is a common issue. If the officer did not provide clear instructions or failed to demonstrate the test correctly, the results may be invalid. Environmental conditions, such as uneven pavement, poor lighting, or inclement weather, can also impact your ability to perform the tests. Additionally, physical or medical conditions like injuries, disabilities, or certain eye conditions can affect performance. We can investigate these factors to build a strong defense.

Can Medical Conditions Affect Field Sobriety Test Results?

Yes, medical conditions can significantly affect the outcome of field sobriety tests. Conditions such as inner ear problems, neurological disorders, or leg and back injuries can hinder balance and coordination. For example, the Horizontal Gaze Nystagmus test relies on eye movements that can be influenced by medical issues unrelated to alcohol consumption. We can obtain medical records and expert testimony to demonstrate how your health conditions may have impacted the test results.

How Does Improper Police Training Impact My DUI Case?

Officers are required to undergo specific training to administer field sobriety tests correctly. If an officer lacks proper certification or training, the validity of the tests they conducted can be questioned. Under Illinois law, evidence obtained through improper procedures may be deemed inadmissible. We can request documentation of the officer’s training records and challenge their qualifications, which may lead to the exclusion of test results from evidence.

Contact Our Chicago DUI Defense Lawyer For Your Free Consultation 

At Edward Johnson & Associates P.C., we are committed to defending your rights and fighting your DUI charge. Challenging field sobriety tests require a detailed understanding of Illinois DUI laws and a strategic approach to uncover weaknesses in the prosecution’s case. Our team is ready to stand by your side and fight for the best possible outcome.
If you are facing a DUI charge in Chicago, don’t hesitate to seek legal assistance. Contact our Chicago DUI defense lawyer at Edward Johnson & Associates P.C. to receive a free consultation by calling 708-762-8666. We represent clients throughout Illinois and we are here to help you navigate this difficult time.